| Wittmund to Oakley (California) | 5,430.13 mi (8,738.95 km) |
| Wittmund to Oakton (Virginia) | 3,937.67 mi (6,337.07 km) |
| Wittmund to Oakville (Missouri) | 4,437.70 mi (7,141.79 km) |
| Wittmund to Oatfield (Oregon) | 4,999.61 mi (8,046.09 km) |
| Wittmund to Ocala (Florida) | 4,619.94 mi (7,435.07 km) |
| Wittmund to Ocean Acres (New Jersey) | 3,781.15 mi (6,085.18 km) |
| Wittmund to Ocean City (New Jersey) | 3,816.29 mi (6,141.73 km) |
| Wittmund to Ocean Pines (Maryland) | 3,880.05 mi (6,244.34 km) |
| Wittmund to Ocean Pointe (Hawaii) | 7,193.38 mi (11,576.63 km) |
| Wittmund to Ocean Springs (Mississippi) | 4,808.32 mi (7,738.25 km) |
| Wittmund to Oceanside (California) | 5,600.91 mi (9,013.80 km) |
| Wittmund to Oceanside (New York) | 3,714.14 mi (5,977.33 km) |
| Wittmund to Ocoee (Florida) | 4,627.39 mi (7,447.07 km) |
| Wittmund to Oconomowoc (Wisconsin) | 4,134.67 mi (6,654.10 km) |
| Wittmund to Odenton (Maryland) | 3,905.92 mi (6,285.97 km) |
